Title of article :
Synthesis of 3,8,13,18-tetrachloro-2,7,12,17-tetramethoxyporphyrin
Author/Authors :
Rana، نويسنده , , Anup and Panda، نويسنده , , Pradeepta K.، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2011
Abstract :
Vilsmeier–Haack formylation of 3,4-dimethoxypyrrole led to the unprecedented formation of 3-chloro-4-methoxypyrrole-2-aldehyde instead of the desired dialdehyde. Subsequent reduction and acid catalyzed cyclization led to the formation of type I, 3,8,13,18-tetrachloro-2,7,12,17-tetramethoxyporphyrin in approximately 6% yield.
Keywords :
?-Tetrachlorotetramethoxyporphyrin , 3 , 3-Chloro-4-methoxypyrrole-2-aldehyde , 4-Dimethoxypyrrole , Vilsmeier–Haack formylation of pyrrole , Asymmetric pyrrole
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
